Question about ASUS P4S800D-X Motherboard

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Loses CMOS settings

I keep having to reset my time/date etc. The computer boots up then tells me I need to enter setup because all the settings are gone. I replaced the CMOS battery, but it still does it.

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NGHJFG

Posted on Mar 09, 2008

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There is a jumper near the board cmos battery. try to clear cmos by changing the jumper to the other position for some seconds (while power is off) so smos is clear.
turn the pc on hit delete to enter setup and load system defaults then exit saving configuration.

Posted on Nov 11, 2007

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Posted on Jan 02, 2017

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Bios rom checksum error, boot block bios vI.0


Error BIOS ROM CHECKSUM - SYSTEM HALTED.
Cause Bad Hardware
Solution Unfortunately this indicates that your computer BIOS ROM chip or Motherboard is physically bad. It is recommended that you contact your computer manufacturer or take the computer into local service center for repair.
If you wish to repair this issue yourself the motherbard will need to be replaced.
This error is not the same as a CMOS Checksum Error, which refers to corrupted values of the CMOS settings, the ones you set through the BIOS setup program. This error means the contents of the BIOS code itself are damaged.

The BIOS ROM chip on the motherboard is probably faulty. It could also be another component on the motherboard.

You should make sure that all of the BIOS settings in the system are correct, by rebooting the system, going into BIOS setup and double-checking all the values hopefully against a recent


If you have reset the CMOS memory you need to go into the BIOS setup screen and reconfigure the BIOS. To do that you need to press a key while the computer is booting. Usually F2 but can be other keys. It should tell you on the bottom of the first screen which key to press to enter BIOS setup.
If you don't know the settings the should be one for optimal defaults - use that one. You will also need to reset the time and date.
Save, Exit and re-boot and everything should then work.

This error is not the same as a CMOS Checksum Error, which refers to corrupted values of the CMOS settings, the ones you set through the BIOS setup program. This error means the contents of the BIOS code itself are damaged.


During the boot process you will see on the screen a certain key to press to enter setup
Press and hold that key during the boot up process to enter BIOS you can load failsafe defaults or load optimized defaults ,press escape then press f10 to save to cmos to restart
You will also need to set the time and date

In the main or system setup screen you should be able to see the date and time Using your arrow keys navigate to the date and change the date. Once highlighted on the month, day, or year, press your arrow keys or your page up / page down keys to change the date.
hope this helps you

Apr 14, 2012 | ASUS A8N-E Motherboard

1 Answer

Bad check sum cmos


This error is not the same as a CMOS Checksum Error, which refers to corrupted values of the CMOS settings, the ones you set through the BIOS setup program. This error means the contents of the BIOS code itself are damaged.

The BIOS ROM chip on the motherboard is probably faulty. It could also be another component on the motherboard.

You should make sure that all of the BIOS settings in the system are correct, by rebooting the system, going into BIOS setup and double-checking all the values (hopefully against a recent


If you have reset the CMOS memory you need to go into the BIOS setup screen and reconfigure the BIOS. To do that you need to press a key while the computer is booting. Usually F2 but can be other keys. It should tell you on the bottom of the first screen which key to press to enter BIOS setup.
If you don't know the settings the should be one for optimal defaults - use that one. You will also need to reset the time and date.
Save, Exit and re-boot and everything should then work.

This error is not the same as a CMOS Checksum Error, which refers to corrupted values of the CMOS settings, the ones you set through the BIOS setup program. This error means the contents of the BIOS code itself are damaged.


During the boot process you will see on the screen a certain key to press to enter setup
Press and hold that key during the boot up process to enter BIOS you can load failsafe defaults or load optimized defaults ,press escape then press f10 to save to cmos to restart
You will also need to set the time and date

In the main or system setup screen you should be able to see the date and time Using your arrow keys navigate to the date and change the date. Once highlighted on the month, day, or year, press your arrow keys or your page up / page down keys to change the date.
hope this helps you

Nov 18, 2011 | Toshiba Equium 2000 (PV1065E0-011FR) PC...

1 Answer

How to save BIOS and change mother board CR2032 Lithium battery


if you only take 5 to 20 sec you might not lose any bios Cmos settings
im not sure what or why you want to save the settings for

once the Cmos battery has been removed for more than 30 - 60 sec your cmos settings will be restored which means no password and failsafe defaults
you could just restore failsafe or optimised defaults if you lose any Cmos settings
you will need to reset the password and the time and date


Restart your computer
During the boot process you will see on the screen to press a certain key to enter setup

Press and hold that key during the boot up process to enter BIOS using the arrow keys load failsafe defaults or load optimized defaults press escape then press f10 to save to cmos to restart

hope this helps you

Oct 16, 2011 | Computers & Internet

2 Answers

Checksum error,boot failure on start up..wont continue..some beeping sound


make sure the compters ram modules and Cmos are securely seated with no dust in the sockets If you have reset the CMOS memory you need to go into the BIOS setup screen and reconfigure the BIOS. To do that you need to press a key while the computer is booting. Usually F2 but can be other keys. It should tell you on the bottom of the first screen which key to press to enter BIOS setup.
If you don't know the settings the should be one for optimal defaults - use that one. You will also need to reset the time and date.
click start control panel date and time you can make your adjustments to the date and time from there also right click on the date and time on the bottom toolbar (bottom of screen) you should see Adjust date and time tab
Save, Exit and re-boot and everything should then work.
During the boot process you will see on the screen to press delete to enter setup

Aug 18, 2011 | Biostar MCP6P-M2 Motherboard - v6.0,...

1 Answer

Start-up and shut down problems, When starting up it says, press f1 to continue, f2 to run set-up.... F1 works but I am getting tired of doing this. Now when the computer starts, it stops at...


Hi names Rui,


For your problem the computer may display a prompt to press F1/F2 or any other key to enter setup each time the computer boots as a reminder on how to enter CMOS. However, if the computer asks to press F1/F2 (or another key) to enter setup and does not continue, this may be caused by any of the below reasons.

  1. New hardware has been recently installed.
  2. Error or confliction with settings in CMOS.
  3. CMOS battery is bad or failing.
Solution:

New hardware has been recently installed

If new hardware has been recently installed into the computer, it is likely that you are receiving the prompt "Press F1 or F2 to enter setup" because CMOS needs to verify that the new detected hardware is properly being setup in CMOS. Enter CMOS setup and save the settings and exit. If you continue to get errors continue to the next step.


Error or confliction with settings in CMOS

If no new hardware has been added or you continue to get this prompt verify no error or conflictions exist in CMOS. Press the key to enter setup and verify that all settings are correct.

If your time and date are not set correctly, your battery is more than likely bad. Try setting the correct time and date, save the settings and then reboot. If after turning off the computer the time and date get reset again replace the battery.

If the time and date are correct and everything else appears to be correct try resetting the CMOS values to the defaults.


CMOS battery is bad or failing

If you continue to receive the prompt to enter setup each time the computer boots up and you have attempted to follow the above suggestions, your CMOS battery is bad. We recommended that the CMOS battery be replaced.


hope this will help you.

Jul 20, 2011 | Dell Dimension 2400 PC Desktop

2 Answers

Bios rom checksum error


The CMOS setup has gotten corrupted. This may have happened if the 3 Volt coin battery on the motherboard is low. If your date and time is wrong, that is a clue the battery needs to be replaced.

If you have a voltmeter, check the voltage on the coin battery. It should be 3V. If it's much less that that, it must be replaced.

Whether or not the battery is bad, you will still have to enter SETUP when you boot the computer after replacing the battery. At boot, it usually displays what key to press to enter setup (DELETE, F2, etc. )

There are several menu screens which you must ensure are correct, according to the hardware installed on your computer.

If this is too daunting, take it to a computer repair place, and they can do it for you.

Good luck!

Jul 13, 2011 | Compaq Computers & Internet

2 Answers

The system clock will not stay set, when I turn off laptop the clock stops and calendar stops . I reset it every time I turn it back on so I receive all up to date updates . Windows updates are set to ...


You need to set the correct date and time in your system BIOS. To access that you need to press the correct key when the computer is first booted (usually DEL or F10/F2/F11).
Most computers will have a message stating press xx Key to enter setup or etc.
If this problem persists even after setting the correct time in your BIOS, your laptop needs a new CMOS battery. I recommend having a professional do this.

May 09, 2011 | Acer Aspire 6920-6422 Notebook

2 Answers

Hello, when I put my pc running it says CMOS checksum error press F1 to enter or Del to enter setup, but I press Del when I save changes "save and exit" the computer restarts, but this time...


The Checksum error basically shows that boot settings which were previously set has been changed or reset. This usually happens when the battery loses its charge and thus fail to retain the CMOS settings. This can also be caused by a power surge or a damaged motherboard. But most of the times it would be the battery problem.

You can try replacing the CMOS battery and enter the values back into CMOS or reset values to default. Then switch off and boot up again.
Hope this works. Good Luck. ~SmokinJoe~

Apr 28, 2011 | EliteGroup KM400-M2 Motherboard

2 Answers

I have a Gateway laptop model no. M622-UCX which continues to prompt for the system date configuration in cmos setup during start. It also cannot remember the date and time I entered several times and...


When a laptop/computer prompts for a BIOS date and Time setting every time you boot up, this indicates the BIOS battey is flat or nearly flat. This BIOS battery needs to be replaced and the BIOS Date and Time setting needs to be configured etc.

Mar 14, 2010 | Gateway Computers & Internet

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